First we need to find the total number of possibilities. We can do this by multiplying the sides on the dice together.
6 x 6 = 36
There are 36 possibilities.
Since there are 3 odd numbers on each dice, multiply 3 x 3 to find the possibilities of odd numbers.
3 x 3 = 9
There are 9 possibilities you can get an odd number.
The answer is 9/36 (simplify to get 1/4) :)
Hopefully this helps! If you have any more questions or don't understand, feel free to DM me, and I'll get back to you ASAP! :)